EVAL-AD1938EB datasheet(15/30 Pages) AD

15 / 30 page

Preliminary Technical Data

AD1935/AD1936/AD1937/AD1938/AD1939

Rev. Pr

I | Page 15 of 30

Pin Function Changes in TDM and AUX Modes

Pin Name

Stereo Modes

TDM Modes

AUX Modes

ASDATA1

ADC1 Data Out

ADC TDM Data Out

TDM Data Out

ASDATA2

ADC2 Data Out

ADC TDM Data In

AUX Data Out 1 (to Ext. DAC 1)

DSDATA1

DAC1 Data In

DAC TDM Data In

TDM Data In

DSDATA2

DAC2 Data In

DAC TDM Data Out

AUX Data In 1 (from Ext. ADC 1)

DSDATA3

DAC3 Data In

DAC TDM Data In 2 (dual-line mode)

AUX Data In 2 (from Ext. ADC 2)

DSDATA4

DAC4 Data In

DAC TDM Data Out 2 (dual-line mode)

AUX Data Out 2 (to Ext. DAC 2)

ALRCLK

ADC LRCLK In/Out

ADC TDM Frame Sync In/Out

TDM Frame Sync In/Out

ABCLK

ADC BCLK In/Out

ADC TDM BCLK In/Out

TDM BCLK In/Out

DLRCLK

DAC LRCLK In/Out

DAC TDM Frame Sync In/Out

AUX LRCLK In/Out

DBCLK

DAC BCLK In/Out

DAC TDM BCLK In/Out

AUX BCLK In/Out

Table 12

30MHz

12.288MHz

SHARC IS RUNNING IN SLAVE MODE

(INTERRUPT-DRIVEN)

ASDATA1 ALRCLK ABCLK DSDATA1

LRCLK

BCLK

DATA

MCLK

AUX

ADC 1

SHARC

AD193X

MCLK

DSDATA2

DLRCLK

LRCLK

BCLK

DATA

MCLK

AUX

ADC 2

LRCLK

BCLK

DATA

MCLK

AUX

DAC 1

LRCLK

BCLK

DATA

MCLK

AUX

DAC 2

DSDATA3

DBCLK

ASDATA2

DSDATA4

TDM MASTER

AUX MASTER

Figure 19. Example of AUX Mode Connection to SHARC (AD193X as TDM Master/AUX Master shown)

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